TY - JOUR TI - Determination of transportation service quality factors for university campuses: evidence from bus service quality in Yildiz Technical University AU - KOÇ, K. AU - KAYA, H.A. JO - Sigma Journal of Engineering and Natural Sciences PY - 2021 VL - 39 SP - 213 EP - 225 DO - 10.14744/sigma.2021.00011 ER -